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– 9 –

This will not work properly if the DISC is set to any slit.

1. Press the

I

/

u

button, turn ON the power, and set a CD in any

slit.

2. Press the

I

/

u

button, and turn OFF the power.

3. While pressing the 

[CHECK]

 and 

[PLUS ONE]

 buttons to-

gether with the power OFF, press the

I

/

u

button and turn ON

the power.

4. All the segments of the fluorescent indicator tube light up, and

the  

·  ,  P  , and 

[PLUS ONE]

 LEDs light up.

5. To exit the display check mode, press the

I

/

u

button.

1. Press the

I

/

u

button to turn the power ON.

2. Open the front cover, and press the 

[PLUS ONE]

 button.

3. Set the disc (YEDS-18 : 3-702-101-01) in the PLUS ONE slit.
4. Close the front cover, and chuck the disc.
5. Press the

I

/

u

button, and turn OFF the power.

6. Connect TP (ADJ) of the DISPLAY board and the ground with

a lead wire.

7. Press the

I

/

u

button and turn ON the power.

The ADJ mode is set with the above.

Differences with normal mode
• No high speed search is performed during access
• Ignored even if GFS becomes L
• Ignored even if Q data cannot be read
• Spindle servo gain is set to 12 cm mode (Even with 8 cm disc)
The following special functions will work when certain functions
are pressed in this mode.

(The (   ) buttons function only with the general purpose remote.)

Button

Function

(3)

Tracking servo, sled servo OFF

(8)

Tracking servo, sled servo ON

CHECK

S shape observation mode

Connect TP (AFADJ) and ground of the DISPLAY board with a
lead wire.
When a button is pressed, the left side of the indicator tube will
show how many buttons have been pressed so far.
(However, buttons already pressed once will not be counted.)
The right side will show the numbers corresponding to the pressed
buttons.

[ DISPLAY BOARD ] — CONDUCTOR SIDE —

Button

Button Number or Display

CLEAR

0

CHECK

1

DISC

2

PUSH ENTER

±

8

≠

9

REPEAT

14

PLAY MODE

15

BLOCK 5

16

BLOCK 4

17

BLOCK 3

18

BLOCK 2

19

BLOCK 1

20

I

/

u

21

PLUS ONE

While the button is pressed, LED (D803) lights up.

·

While the button is pressed, LED (D801) lights, and
the whole fluorescent indicator tube lights up.

The fluorescent indicator tube (segment check)

P

is partially lit and LED near by (D802) is lit while
pressed.

p

The fluorescent indicator tube is partially lit while
pressed (grid check).

CNP801

IC801

CNP804

TP(AFADJ)

TP(ADJ)

1 DISC

CD 1

*

*

* *

2

Count up

Button number

– 10 –

$

$

$

$

$

$

$

$

$

 (1 cycle takes 3 minutes)

$

$

$

1. No. 51

2. No. 20

3. No. 40

4. No. 30

5. No. 10

6. No. 40*

$

$

$

$

* DISC No. 40 chucks twice during one cycle.

To differentiate,  the “

[2]

” on the block indicator of the fluores-

cent indicator tube will light up during the second chucking.

1. Disc change

2. Load in

3.

TOC read

4.

Access of last track

5.

3 second playback

6.

Access of first track

7. 3 second playback

8. Load out

1. Grid check

2. Segment check

Key input

Display

Rotate the JOG knob to

Fluorescent indicator tube block indicator

the right

lights up in the order of 1 

n 2 n 3 n 4 n

5 

n 1 n ·····.

Rotate the JOG knob to

Fluorescent indicator tube block indicator

the left

lights up in the order of 5 

n 4 n 3 n 2  n

1

n 5 n ·····.

Press the JOG knob

Displays button number 2

(ENTER)

Door cover “Close”

[STANDBY]

LED goes OFF

Door cover “Open”

[STANDBY]

LED lights up

• Mode which repeatedly changes and plays back discs automati-

cally in the unit.

• It will repeat aging as long as no errors occur.
• If an error occurs during aging, it will stop all servos, motors,

etc. instantaneously, display the error number, and stop opera-
tions. However, the stopping conditions differ according to
whether the unit is equipped with the “self-protection function
during errors” described later.
The function serves to maintain the state of the unit when errors
occur.

There are some useful function in the aging mode.
• Disc setting mode*1
• Switching of use/disuse of protection function in errors *2
• Aging cycle count function *3

*1 Disc setting mode:

5 discs are set before setting the aging mode. This mode makes
the setting of these discs more easy.

*2 Switching of use/disuse of protection function in errors:

Function which voluntarily corrects errors which occur dur-
ing normal operations by retries.
If this function is not provided, all operations will be stopped
without retiring. It is suitable for checking errors with low re-
producibility.
If this function is provided, and errors can be corrected by
retries, aging will be continued without stopping.
(The normal aging should be performed with “be”.)

*3 Aging cycle count function:

Functions which displays the number of agings carried out on
the Fluorescent indicator tube  in numbers. One aging cycle
consists of six discs.

1 DISC

CD 1

88

88

88

7

---

onn

Disc number

Track number

Agings carrried

(1 

n

 2 

n

 3 

n

 .....)

DISC

51

TRACK

1

MIN SEC

0.01

*

– 11 –

Some operating method will be changed depending on if the fol-
lowing jig for the aging mode exists or not.

• Jig

Parts. No

Description

J-2501-123-A

Remote commander (For aging mode)

With remote commander for aging mode:
1. Turn ON the power of the unit. Open the front cover.
2. Press the

[AGING START]

button of the remote commander

for aging mode.

3. When the disc set mode is set, the

·  and P LEDs blink.

4. Rotate the JOG dial. The slits (No. 10, 20, 30, 40, 51) for set-

ting the discs will come forward. Insert the discs into these
slits. Do not set the discs in other slits.

5. Set the use/disuse of the self protection function in errors. Press

the 

[REPEAT]

 button. When REPEAT is displayed on the fluo-

rescent indicator tube, the self protection function during the
error will become “Use”.
If the REPEAT display is OFF, it means that the function is
not used. (Normally set to “Use” when performing aging.)

6. Press the

· button.

7. The

· LED blinks, the aging mode is set, and aging is

started.

8. The aging cycle lasts 3 minutes. When problems occur during

aging, the error number will be displayed on the fluorescent
indicator tube, and the  

P  LED will light up.

(Refer to the following table for the details of the errors.)

9. Aging will be repeated as long as no errors occur.
10. After each aging cycle, the number displayed on the Fluores-

cent indicator tube will increase.

11. To end aging, press the

I

/

u

button

Without remote commander for aging mode:
1. Turn ON the power of the unit. Open the front cover.
2. Press the 

[PLAY MODE]

, 

· , and

≠

buttons in order.

3. When the disc set mode is set, the

· and P LEDs blink.

The following procedure is the same as in the case “With remote
commander for aging mode”.

Code number

Name

Contents

Err 01

DISC sensor check 1

No disc in the specified slit

Err 02

DISC sensor check 2

Disc in other slits

Err 03

No function

Err 04

Table operation check 2

No table sensor input

Err 05

Loading operation check 1

Load in timeover

Err 06

Loading operation check 2

Load out timeover

Err *1

BU related check 1

Access timeover

Err *2

BU related check 2

High speed search NG

Err *3

BU related check 3

Q data read error

Err *4

BU related check 4

BU operation (From focus search to until signal can be read) timeover

Err *5

BU related check 5

GFS monitor error

Err *6

BU related check 6

Focus cannot be imposed by focus search

The * numbers mean the following according to the state of the unit during aging

2 : From checking to end of TOC read
3 : From end of TOC read to end of last track playback
4 : From end of last track playback to end of first track playback

Disc number

Error code

number of agings

(1 

n

 2 

n

 3 

n

.....) 

DISC

51

26

Err

*

– 12 –

To adjust the mechanism section, enter the mechanism section adjustment mode.
For how to enter the mechanism section adjustment mode, refer to each adjustment section.

1. Make sure that there is no disc in the unit.
2. Connect an oscilloscope to TP501 of the AUDIO board.

3. While pressing the

[CLEAR]

and

[PLUS ONE]

buttons at the same time and turn ON the power.

4. The fluorescent indicator tube shows as follows, and the mechanism section adjustment mode is set.

5. The disc table rotates in the clockwise direction. The disc table rotation time is displayed with “PLUS ONE” slit as a measuring point.
6. Measure the waveform of the oscilloscope when the disc table is rotating.

oscilloscope

SENS (CH1)

TEST (CH2)

GND

SENS
GND
TEST

AUDIO board
TP501

POWER switch

PLUS ONE button

CHECK button

CLEAR button

±

 button

≠

 button

1

1

1

1

1

3 . 6

ALL DISCS

DISC

SEC

CD1

* *

Rotation time

Lit according to rotational direction

DISC No.

PLUS ONE